Home / 2,981.06-4,469.90-1,227.28

Finding the Fourth Proportional to 2,981.06, 4,469.90 and 1,227.28

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Solution

The fourth proportional to 2,981.06, 4,469.90 and 1,227.28 is: 1,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.06 : 4,469.90 = 1,227.28 : x
  2. Step 2: Convert to fraction form
    2,981.06/4,469.90 = 1,227.28/x
  3. Step 3: Cross multiply
    2,981.06x = 4,469.90 × 1,227.28
  4. Step 4: Simplify right side
    2,981.06x = 5,485,818.87
  5. Step 5: Solve for x
    x = 5,485,818.87/2,981.06
  6. Step 6: Final answer
    x = 1,840.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.